Case studies in Environmental science / 
Underwood, Larry 
 - 2nd edition. 
 - Philadelphia :  Harcourt College Publishers, Inc.,  c2001 
 - xi,408 pages :  ills.;  28cm.  Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>0 03 031582 4 
<br/><br/><label>Subjects--Personal Names: </label>--Environmental science.
<br/><br/><label>Dewey Class. No.: </label>333.7 UND